CUPE Local 1115 represents workers in two units at the City of Welland: City Unit, and Library Unit.
City Unit
Local 1115 City Unit consists of approximately 80 full- and part- time staff that work in:
- Development and Building Services
- Planning Division
- Building Division
- Parking/Bylaws/Traffic
 
- Corporate Services
- Finance
- Purchasing, Inventory, and Fleet Operations
- Payroll
- Clerks
- Information Services
 
- Engineering & Public Works
- Communications & Marketing
- Recreation, Sport & Culture
City Unit staff work at five main locations in the city:
| City Hall | 60 East Main Street |  | 
| Public Works | 99 Federal Road |  | 
| Welland Community Centre | 145 Lincoln Street |  | 
| Welland Farmers' Market | 70 Young Street |  | 
| Rec Rentals @ the Docks | 129 Lincoln Street (Rotary Park) |  | 
Library Unit
Local 1115 consists of approximately 30 full- and part- time library workers who work at three library branches:
- Main Branch
- Diamond Trail Branch
- Seaway Mall Branch
